Results 21 to 30 of about 484,393 (291)

Development of a chlorine chemistry module for the Master Chemical Mechanism [PDF]

Geoscientific Model Development, 2015
The chlorine atom (Cl·) has a high potential to perturb atmospheric photochemistry by oxidizing volatile organic compounds (VOCs), but the exact role it plays in the polluted troposphere remains unclear.
L. K. Xue, S. M. Saunders, T. Wang, R. Gao, X. F. Wang, Q. Z. Zhang, W. X. Wang   +6 more
doaj   +1 more source

The Atmospheric Chemistry and Climate Model Intercomparison Project (ACCMIP): Overview and description of models, simulations and climate diagnostics [PDF]

, 2013
The Atmospheric Chemistry and Climate Model Intercomparison Project (ACCMIP) consists of a series of time slice experiments targeting the long-term changes in atmospheric composition between 1850 and 2100, with the goal of documenting composition changes
Bergmann, D., Cameron-Smith, Philip, Cionni, I, Collins, William J., Dalsoren, Stig B, Doherty, R. M., Eyring, V., Faluvegi, G., Folberth, G., Ghan, S, Horowitz, L. W., Josse, B, Lamarque, J. F., Lee, Y, MacKenzie, Ian A., Nagashima, T, Naik, Vaishali, Plummer, David A, Righi, M, Rumbold, S, Schulz, Michael, Shindell, Drew T., Skeie, R, Stevenson, D. S., Strode, Sarah, Sudo, K., Szopa, Sophie, Voulgarakis, A., Young, Paul, Zeng, Guang   +29 more
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Nighttime removal of NOx in the summer marine boundary layer [PDF]

, 2004
The nitrate radical, NO3, and dinitrogen pentoxide, N2O5, are two important components of nitrogen oxides that occur predominantly at night in the lower troposphere. Because a large fraction of NO2 reacts to form NO3 and N2O5 during the course of a night,
Aldener, M, Angevine, W M, Bates, Timothy S, Brown, S S, DeGouw, J A, Dibb, Jack E., Fehsenfeld, Fred C, Goldan, P D, Jakoubek, R, Kuster, W C, Lerner, Brian M, Meagher, James, Middlebrook, A M, Quinn, Patricia K, Ravishankara, A R, Stark, H, Sueper, D, Vozzella, Marcy, Warneke, C, Whitlow, Sallie I, Williams, E J   +20 more
core   +2 more sources

Characterization of a boreal convective boundary layer and its impact on atmospheric chemistry during HUMPPA-COPEC-2010 [PDF]

Atmospheric Chemistry and Physics, 2012
We studied the atmospheric boundary layer (ABL) dynamics and the impact on atmospheric chemistry during the HUMPPA-COPEC-2010 campaign. We used vertical profiles of potential temperature and specific moisture, obtained from 132 radio soundings, to ...
H. G. Ouwersloot, J. Vilà-Guerau de Arellano, A. C. Nölscher, M. C. Krol, L. N. Ganzeveld, C. Breitenberger, I. Mammarella, J. Williams, J. Lelieveld   +8 more
doaj   +1 more source

Editorial for the Special Issue “Atmospheric Dispersion and Chemistry Models: Advances and Applications”

Atmosphere, 2023
Atmospheric dispersion and chemical transport models (CTMs) are a key tool in both atmospheric chemistry and environmental sciences [...]
Daniel Viúdez-Moreiras
doaj   +1 more source

Modelling chemistry in the nocturnal boundary layer above tropical rainforest and a generalised effective nocturnal ozone deposition velocity for sub-ppbv NOx conditions [PDF]

, 2010
Measurements of atmospheric composition have been made over a remote rainforest landscape. A box model has previously been demonstrated to model the observed daytime chemistry well. However the box model is unable to explain the nocturnal measurements of
A Guenther, A Kerkweg, A Sandu, A. Robert MacKenzie, B Aumont, B Cros, C Mihele, C. Nicholas Hewitt, Carole Helfter, CN Hewitt, CN Hewitt, D Daescu, D Fitzjarrald, D Fitzjarrald, D Fowler, D Lowe, Douglas Lowe, E Real, Eiko Nemitz, F Hamba, G Pearson, H ApSimon, H Gusten, I Faloona, I Trebs, J Businger, J Kleffmann, J Kleffmann, J Pisano, J Seinfeld, J Strong, J Vila-Guerau de Arellano, J Vinuesa, J Yienger, James D. Lee, James Ryder, JD Fuentes, JG Murphy, K Emmerson, K Matsuda, K Toyota, KA Read, M Evans, M Michou, M Wesely, O Hov, O Wild, OC Acevedo, P Hamer, P Monks, R Brost, R Donovan, R Wayne, RC Pike, S Fan, S Galmarini, S Watt, Sarah J. Moller, SS Brown, T Biesenthal, TAM Pugh, Thomas A. M. Pugh, U Rummel, V Damian, W Gao, W Gao   +65 more
core   +1 more source

Introducing Volatile Organic Compound Model Intercomparison Project (VOCMIP) [PDF]

Geoscientific Model Development
Volatile organic compounds (VOCs) play an important role in atmospheric chemistry, influencing the cycling of peroxy and hydroxyl radicals, the formation of tropospheric ozone, hydrogen, secondary organic aerosol, and the lifetime of methane and other ...
G. Myhre, Ø. Hodnebrog, S. Krishnan, M. Sand, M. Sandstad, R. B. Skeie, L. Clarisse, B. Franco, D. B. Millet, K. C. Wells, A. Archibald, A. Archibald, H. N. Bryant, A. T. Chaudhri, D. S. Stevenson, D. Hauglustaine, M. Prather, J. C. Kaiser, D. J. L. Olivie, M. Schulz, O. Wild, Y. Wang, T. Salameh, J. E. Williams, P. Le Sager, F. Paulot, K. Tsigaridis, K. Tsigaridis, H. E. Plaas, H. E. Plaas   +29 more
doaj   +1 more source

Scalable diagnostics for global atmospheric chemistry using Ristretto library (version 1.0) [PDF]

Geoscientific Model Development, 2019
We introduce a new set of algorithmic tools capable of producing scalable, low-rank decompositions of global spatiotemporal atmospheric chemistry data.
M. Velegar, N. B. Erichson, C. A. Keller, C. A. Keller, J. N. Kutz   +4 more
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Global atmospheric chemistry – which air matters [PDF]

Atmospheric Chemistry and Physics, 2017
An approach for analysis and modeling of global atmospheric chemistry is developed for application to measurements that provide a tropospheric climatology of those heterogeneously distributed, reactive species that control the loss of methane and the ...
M. J. Prather, X. Zhu, C. M. Flynn, S. A. Strode, S. A. Strode, J. M. Rodriguez, S. D. Steenrod, S. D. Steenrod, J. Liu, J. Liu, J.-F. Lamarque, A. M. Fiore, L. W. Horowitz, J. Mao, L. T. Murray, D. T. Shindell, S. C. Wofsy   +16 more
doaj   +1 more source

Spatiotemporal analysis of atmospheric aerosols in African environments using MERRA-2 data (1980–2024): Impacts on climate extremes

iScience
Summary: This study investigates atmospheric aerosol trends and their climatic impacts across Africa from 1980 to 2024 using MERRA-2 reanalysis data.
Daniel O. Omokpariola
doaj   +1 more source